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Topic: Sclera


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Eye

In the News (Sun 22 Nov 09)

  
  optical-brigade.com •• Special effect contact lenses •• Halloween contact lenses, Black Sclera ...
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www.optical-brigade.com /black_sclera_contact_lenses   (105 words)

  
  X. The Organs of the Senses and the Common Integument. 1c. 1. The Tunics of the Eye. Gray, Henry. 1918. Anatomy of the ...
869) form the fibrous tunic of the bulb of the eye; the sclera is opaque, and constitutes the posterior five-sixths of the tunic; the cornea is transparent, and forms the anterior sixth.
Its outer surface is loosely connected by the lamina suprachorioidea with the sclera; its inner surface is attached to the pigmented layer of the retina.
The circular fibers are internal to the meridional ones, and in a meridional section appear as a triangular zone behind the filtration angle and close to the circumference of the iris.
www.bartleby.com /107/225.html   (5591 words)

  
 sclera
The visible front part of it is called the "white of the eye." At the very front of the eye, covering the iris and pupil, the sclera becomes, or is continuous with, the (transparent) cornea.
The sclera is attached by tendons to the extraocular muscles, which move the eye left and right, up and down, and diagonally.
An inflammation in the sclera is called scleritis and is characterized by a clearly confined red area in the white of the eye.
www.daviddarling.info /encyclopedia/S/sclera.html   (218 words)

  
 FAHERS 211 The Sclera Dr P.McMenamin   (Site not responding. Last check: 2007-10-25)
The sclera forms the principal part of the outer fibrous coat of the eye and functions to both protect the intraocular contents and maintain the shape of the globe when distended by intrinsic intraocular pressure (IOP).
The collagen fibrils on the internal aspect of the sclera are arranged in a rhombic pattern (Thale and Tillman, 1993, IOVS).
The sclera commences anteriorly at the limbus and ends posteriorly where the optic nerve perforates the sclera in the region known as the lamina cribrosa.
www.lab.anhb.uwa.edu.au /vsci/sclera.htm   (464 words)

  
 histolab3b.htm
- The Limbus is the junction of the sclera with the cornea.
The Vascular Tunic or Choroidm is a pigmented layer beneath the sclera in the posterior portion of the eyeball.
The choroid is situated between the sclera on the outside and the retina on the inside of the eyeball.
faculty.une.edu /com/abell/histo/histolab3b.htm   (2255 words)

  
 Blue Histology - The Eye
The lateral margins of the cornea are continuous with the conjunctiva (anterior corneal epithelium) and sclera (corneal stroma).
The sclera is a tough layer of dense connective tissue consisting of collagenous fibres and networks of elastic fibres.
Melanocytes are present in deep parts of the sclera in addition to the usual complement of connective tissue cells.
www.lab.anhb.uwa.edu.au /mb140/CorePages/eye/eye.htm   (2792 words)

  
 Disorders of the Sclera
The diseases which affect the sclera are collagen destructive, painful, chronic, result in marked inflammation, and are often localized manifestations of disease processes affecting the entire body.
Degenerations of the sclera occur commonly in response to aging and disease.
The sclera, because of it's tough fibrous structure, prevents the spread of intraocular tumors.
www.asiteforeyes.com /DisordersoftheSclera.htm   (1534 words)

  
 The Choroid and Sclera   (Site not responding. Last check: 2007-10-25)
The mesenchyme that surrounds the optic cup, excluding the anterior aspect where it forms the cornea, gives rise to the choroid and sclera.
The inner layer, immediately surrounding the pigment layer of the retina, is the choroid, which is a highly vascularized pigmented layer.
The sclera is continuous with the substantia propria of the cornea.
www.vision.ca /eye/choroid_sclera.html   (161 words)

  
 Comparative Ophthalmology Notes: Chapter 8 - Sclera   (Site not responding. Last check: 2007-10-25)
The sclera extends anteriorly beyond the base of the iris to various distances (less than 4 mm), so that the drainage angle is obscured (usually can only be seen with special lens by technique of gonioscopy).
This is a benign nodular lesion of connective tissue occurring in sclera, cornea, or third eyelid.
The tear in the sclera can be anywhere and may even be posterior, beyond view; in these latter cases, the eye may not appear particularly traumatized, but will be very soft; the latter finding should alert you to the probability of a perforation not visible to you.
www.vetmed.ucdavis.edu /courses/vet_eyes/conotes/con_chapter_8.html   (1340 words)

  
 eMedicine - Scleritis : Article Excerpt by: Jerome FX Naradzay, MD, FACEP   (Site not responding. Last check: 2007-10-25)
Diffuse anterior scleritis is characterized by widespread inflammation of the anterior portion of the sclera.
Erythematous, immovable, and tender, inflamed nodules on the anterior sclera characterize nodular anterior scleritis.
Inflammation, the principal process affecting the sclera, is frequently part of a general inflammatory reaction associated with a system immune-mediated collagen vascular disease.
www.emedicine.com /emerg/byname/scleritis.htm   (502 words)

  
 Scleral Buckling - Definition, Purpose, Demographics, Description, Diagnosis/Preparation, Aftercare, Risks, Normal ...
Scleral buckling is a surgical procedure in which a piece of silicone plastic or sponge is sewn onto the sclera at the site of a retinal tear to push the sclera toward the retinal tear.
The buckle holds the retina against the sclera until scarring seals the tear.
The sclera is cut open (B), and an electrode is applied to the area of retinal detachment (C).
www.surgeryencyclopedia.com /Pa-St/Scleral-Buckling.html   (1726 words)

  
 Lab exercises- Retina, choroid, and sclera
Above the sclera are the layers of the darkly staining choroid (note the large vessels in the vessel layer.
The sclera is a connective tissue sheath that support the eyeball and also attach to tendons of eye muscles.
The next two views show the sclera and choroid in relationship to the retina (next photograph).
cellbio.utmb.edu /microanatomy/eye/Retina_lab.htm   (745 words)

  
 Ophthalm-AUS - Oben's Ophthalmology Site
Sclera is the outer protective fibrous layer of the eye, comprising the posterior 5/6's of the globe.
Extraocular muscles insert onto outer curvature of sclera in a pattern known as the spiral of Tillaux with progressively more posterior insertions (ie MR ~5.5mm, IR ~6.5mm, LR ~6.9mm, SR ~7.7mm from limbus) Muscle tendons fan out at the junction with sclera & interweave with scleral fibers.
Sclera remains opaque with water content between 40-80%.
home.iprimus.com.au /oben/sclera.htm   (733 words)

  
 Sclera Derma and the Mangosteen Juice   (Site not responding. Last check: 2007-10-25)
I was diagnosed two years ago, February 8, 2003 with Sclera derma.
Sclera derma will affect the heart and harden the lungs, which could lead to death.
Sclera derma has affected the sweat glands; therefore, I do not sweat.
www.rusanent.com /xp/sclera_derma.htm   (535 words)

  
 Sclera - eye anatomy   (Site not responding. Last check: 2007-10-25)
The sclera is commonly known as "the white of the eye." It is the tough, opaque tissue that serves as the eye's protective outer coat.
The optic nerve is attached to the sclera at the very back of the eye.
In children, the sclera is thinner and more translucent, allowing the underlying tissue to show through and giving it a bluish cast.
www.stlukeseye.com /anatomy/Sclera.asp   (98 words)

  
 AllRefer Health - Sclera
The sclera is the white portion of the eye.
It is a tough, fibrous tissue that extends from the cornea (the clear front section of the eye) to the optic nerve at the back of the eye.
The sclera is commonly referred to as the "white of the eye."
health.allrefer.com /health/sclera-info.html   (242 words)

  
 Altered Collagen Fibril Formation in the Sclera of Lumican-Deficient Mice -- Austin et al. 43 (6): 1695 -- ...
Sclera were extracted with 4 M guanidine HCl, and extracts were subjected to 10% SDS-PAGE and electrotransfer, with or without (Und) prior digestion with either keratanase I-keratanase II (KI/KII), or endo-ß-galactosidase (ß).
The sclera of wild-type and heterozygous mice consisted of fairly organized lamellae of collagen.
the anterior sclera and 54.68 nm the posterior sclera.
www.iovs.org /cgi/content/full/43/6/1695   (3541 words)

  
 SIU SOM Histology SSB
The sclera is continuous with the transparent substantia propria of the cornea.
At the limbus (the edge of the cornea, where the cornea meets the sclera), it is apparent that the epithelium of the sclera is almost identical to that of the cornea, except for a slightly less regular basal layer.
Deep to the limbus (i.e., the cite where the cornea meets the sclera), the choroid layer is thickened into the ciliary body.
www.siumed.edu /~dking2/ssb/eye.htm   (3017 words)

  
 Anatomy: Internal structures
The anterior 1/6 of the fibrous coat is the cornea, the posterior 5/6 is the sclera.
The cornea is structurally continuous with the sclera at the corneoscleral junction.
the optic nerve attaches to the posterior of the sclera
library.thinkquest.org /28030/ana/int.htm   (968 words)

  
 Medical Dictionary: Sclera - WrongDiagnosis.com - WrongDiagnosis.com
Sclera: whitish fibrous membrane (albuginea) that with the cornea forms the outer covering of the eyeball
Sclera : tough white outer coat of the eyeball, continuous anteriorly with the cornea and posteriorly with the external sheath of the optic nerve.
Sclera (organ): White area of the front of the eye
www.wrongdiagnosis.com /medical/sclera_printer.htm   (113 words)

  
 The Sclera   (Site not responding. Last check: 2007-10-25)
The sclera's only purpose is to protect the eye from the many injuries that might happen.
The sclera is opaque so the light can only enter throught the pupil.
Retina Sclera Lens Conjuctiva Optic Nerve Pupil Iris Cornea
library.thinkquest.org /26111/sclera.html   (49 words)

  
 MERSI Ocular Immunology and Uveitis Foundation| Patient Information | Glossary
The sclera is covered by the episclera, a thin layer of tissue containing many blood vessels that nourish the sclera.
Scleritis is Inflammation located in the sclera of the eye, the touch, white, outer layer (coat) of the eyeball made up of connective tissue fibers.
Indeed, inflammation of the sclera can sometimes be a presenting manifestation of a potentially very serious systemic disease.
www.uveitis.org /patient/glossary/m_s.html   (4013 words)

  
 orange sclera contact lenses - www.disposable-contacts-lenses.com   (Site not responding. Last check: 2007-10-25)
The distance orange between the lenses is for a "standard" sclera person.
Generally, contact this will not be a problem, but if a patient is sensitive or has more closely set eyes, for example, it may lenses pose a problem.
The Council reports that lenses about 11% of lenses wearers, approximately 2.8 million people, orange are sclera under 18.InfantsThere are few instances when corrective lenses--lenseses or contacts--are prescribed for infants.
www.disposable-contacts-lenses.com /orange-sclera-contact-lenses.htm   (281 words)

  
 Diffusion of High Molecular Weight Compounds through Sclera -- Ambati et al. 41 (5): 1181 -- Investigative ...
Each piece of sclera was used on the day of isolation.
of sclera to the tracers studied is shown in Table 1.
TEM of sclera exposed to cyanoacrylate demonstrates collagen banding pattern and fibril diameters similar to those of control sclera.
www.iovs.org /cgi/content/full/41/5/1181   (3522 words)

  
 red sclera after vomiting
Serious question: The other night after a bout of the stomach flu (whereby I vomited very very violently), I woke up the next day with broken blood vessels underneath my eyes (no problem) and the whites of my sclera, esp. my right eye, were bright red.
I assumed it was a broken blood vessel, but have never had this happen to me. Is this something I should be concerned with.
I also noticed that it turned a little yellow, but am attributing that to the healing of the bleeding as opposed to a jaundice situation.
www.medhelp.org /forums/eyecare/archive/303.html   (248 words)

  
 Relationship of Hari and Eye Color with the Incidence of Pinkeye in Beef Cattle - 2002 Research Report, Department of ...
After the eyes of animals had recovered and were normal, the color of the hair around the eyes of cows and calves, and the color of the sclera of cows were determined without knowledge of the previous infection status.
Effect of hair color around the eyes of cows and calves and color of the sclera of cows on the incidence of inflammation due to pinkeye causing bacteria and severity (number of times animals were treated) were determined by analyses of variance.
Table 2.  Relationship between eye sclera color (white of eye) with the incidence and severity of pinkeye
www.ansi.okstate.edu /research/2002rr/36/index.htm   (228 words)

  
 The MSDS HyperGlossary: Sclera   (Site not responding. Last check: 2007-10-25)
The sclera is "the whites of your eyes", the white outer coat of the eyeball that surrounds the cornea all the way back to the optic nerve.
The sclera may be damaged by corrosive chemicals or vapors.
Always wear proper eye protection and know the hazards of the materials your are working with.
www.ilpi.com /msds/ref/sclera.html   (179 words)

  
 Black Sclera Contact Lenses Feed Back
We know everyone has different experiences using Black Sclera Contact Lenses, so your personal on Black Sclera Contact Lenses would be very helpful for other consumers like you.
We really appreciate your input here, and sometimes when we have enough feedback on Black Sclera, we may even contact the manufacturer, so they can improve their products.
About the fl sclera, can you see through them without color changing or something like that.
www.contactlensesprice.com /Black+Sclera_560_feedback.html   (417 words)

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